IP Library Granted Patent US 4,971,113
Granted Patent Utility
US 4,971,113 · App. 07/467,856

Single-lever mixing-valve assembly

Inventors: Manfred Pawelzik, Horst Titze
Patented Case View Patent ↗
Granted: Nov 20, 1990 Filed: Jan 22, 1990
Inventors
Manfred Pawelzik
Horst Titze
Assignee (at issue)
Friedrich Grohe Armaturenfabrik GmbH & Co.

This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.

Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 4,971,113
App. No.
07/467,856
Filed
1990-01-22
Granted
1990-11-20
Kind
A